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DN40 DN50 Stainless Steel Water Flow Sensor, 1.5" & 2" Turbine Flowmeter, 5-300 L/min, DC 5-24V Hall Effect Pulse Output

DN40 DN50 Stainless Steel Water Flow Sensor, 1.5" & 2" Turbine Flowmeter, 5-300 L/min, DC 5-24V Hall Effect Pulse Output

CUCIR-DJWF-DN40-S

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$89.00
$89.00
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● 5-150 L/min, 10~200 L/min
● DN40/ DN50
● Stainless steel
● Water (free of impurities)
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Overview

The Industrial Stainless Steel Turbine Flow Sensor is a high-precision liquid monitoring solution designed for large-scale piping systems. Available in DN40 (1.5") and DN50 (2") specifications, it supports extensive flow ranges of 5–150 L/min and 10–200 L/min. Built from premium-grade stainless steel, the sensor housing ensures exceptional mechanical strength and corrosion resistance. Engineered for reliability, it maintains stable performance across a wide temperature spectrum (-20°C to 100°C), making it the ideal choice for industrial water treatment, cooling systems, and chemical monitoring.

Feature

High-Flow Industrial Compatibility: Specifically engineered for DN40 and DN50 interfaces. The optimized internal turbine geometry minimizes pressure drop while ensuring consistent flow laminarization for high-volume measurement.

Precision Pulse Calibration: Delivers high-stability pulse signals with a strictly controlled error margin of ±5%. The clear pulse coefficients—approximately 27 pulses/L (DN40) or 12 pulses/L (DN50)—allow for effortless flow calculation and PLC integration.

Rugged SUS304 Construction: The robust stainless steel valve body is designed for high-pressure environments and offers superior resistance to oxidation and mechanical wear, significantly extending the service life compared to plastic alternatives.

Universal System Integration: Supports a versatile 3.5–24 VDC power supply, featuring insulation resistance over 100 MΩ. The crisp digital pulse output (High/Low levels) ensures seamless "plug-and-play" connectivity with various automation controllers and data loggers.

Wide Thermal Tolerance: The internal sensing components are rated for extreme medium temperatures up to 100°C, providing accurate readings in both hot water circulation and cold-process applications.

TECHNICAL SPECIFICATIONS

Flow Range
5–150 L/min
10–200 L/min
Connection Size
DN40 (1.5 inches)
DN50 (2 inches)
Inner Diameter
Inlet 36.5 mm / Outlet 34 mm
Inlet 46.5 mm / Outlet 44 mm
Pulse Range
F = 0.45 × Q (Error ≤ 5%, approx. 27 pulses/liter)
F = 0.2 × Q (Error ≤ 5%, approximately 12 pulses/liter)
Outer Diameter
47.5 mm
59 mm
Thread Length
19 mm
20 mm
Voltage Range
3.5–24 VDC
Water Pressure Resistance
≤ 1.75 MPa
Suitable Media
Water (free of impurities)
Valve Body Material
Stainless steel
Media Temperature
-20 to 100 °C
Insulation Resistance
> 100 MΩ
Output Pulse High Level
> DC 4.7 V (input voltage DC 5 V)
Output Pulse Low Level
< DC 0.5 V (input voltage DC 5 V)

Dimension (unit: mm)

Dimension Drawing

Detail

Dimension Drawing

Product FAQ

What media is this stainless steel flow sensor compatible with? +
Constructed with a high-grade SUS304 stainless steel body and a food-grade internal turbine, this sensor offers superior corrosion resistance. It is engineered for clean water, deionized water, and non-corrosive aqueous solutions. Its robust metallic construction also makes it suitable for low-viscosity industrial fluids like diesel or light oils. For applications involving strong acids or high-concentration chemicals, please consult our technical team for specific material compatibility.
Can the sensor handle high-temperature or high-pressure industrial systems? +
Yes. Unlike plastic sensors that deform under stress, our stainless steel series is built for rugged performance. It supports a maximum operating pressure of 1.75 MPa (approx. 250 PSI) and can safely handle medium temperatures up to 100°C (212°F). This makes it the preferred choice for industrial hot water circulation, pressurized cooling loops, and high-volume pump monitoring where structural integrity is critical.
What are the critical installation requirements for DN40/DN50 sensors? +
To ensure a measurement accuracy of ±5%, follow these three professional guidelines:

Flow Direction: Align the fluid flow with the arrow engraved on the stainless steel body.

Straight Pipe Section: For the most stable readings, maintain a straight pipe run of at least 10× diameter (10D) upstream and 5× diameter (5D) downstream to eliminate turbulence.

Positioning: Ensure the sensor is installed at a low point in the piping to keep the internal chamber completely filled with liquid, avoiding air pockets that can cause pulse signal jitter.